South Branch Potomac River Near Petersburg, WV
USGS Site No: 01606500 • Potomac River • Grant County, WV
South Branch Potomac River Near Petersburg, WV on the Potomac River is currently at 1,750 cfs (Very High — 104th percentile for this date) . Gage height: 5.99 ft.
Reading from
Historical Percentile Comparison
Today's discharge compared to the long-term record for October 28 at this station. Percentile rank shows what fraction of historical years had lower flow on this date.
| Percentile | Label | CFS Threshold | Today's Flow |
|---|---|---|---|
| 10th | Very Low threshold | 80 | |
| 25th | Low threshold | 99 | |
| 50th (Median) | Normal (median) | 157 | |
| 75th | High threshold | 378 | |
| 95th | Very High threshold | 910 |
30-Day Hydrograph
Recent discharge plotted against the historical 10th–95th percentile envelope for the same calendar days. Source: USGS daily values + long-term statistics.
30-Day Flow History
| Date | Discharge (CFS) | Gage Ht (ft) |
|---|---|---|
| May 28, 2026 | 3,160 | — |
| May 27, 2026 | 3,180 | — |
| May 26, 2026 | 2,580 | — |
| May 25, 2026 | 2,270 | — |
| May 24, 2026 | 2,910 | — |
| May 23, 2026 | 4,400 | — |
| May 22, 2026 | 1,120 | — |
| May 21, 2026 | 265 | — |
| May 20, 2026 | 192 | — |
| May 19, 2026 | 209 | — |
| May 18, 2026 | 218 | — |
| May 17, 2026 | 224 | — |
| May 16, 2026 | 230 | — |
| May 15, 2026 | 241 | — |
| Apr 21, 2026 | 280 | — |
| Apr 20, 2026 | 302 | — |
| Apr 19, 2026 | 311 | — |
| Apr 18, 2026 | 318 | — |
| Apr 17, 2026 | 333 | — |
| Apr 16, 2026 | 353 | — |
| Apr 15, 2026 | 374 | — |
| Apr 14, 2026 | 393 | — |
| Apr 13, 2026 | 411 | — |
| Apr 12, 2026 | 438 | — |
| Apr 11, 2026 | 475 | — |
| Apr 10, 2026 | 505 | — |
| Apr 9, 2026 | 544 | — |
| Apr 8, 2026 | 596 | — |
| Apr 7, 2026 | 654 | — |
| Apr 6, 2026 | 690 | — |
Station Information
- USGS Site No
- 01606500
- State
- WV
- County
- Grant County
- Coordinates
- 38.9912, -79.1759
- Drainage Area
- 651 mi²
- Datum (ft)
- 965.9
- HUC Code
- 02070001
Flood Stage Thresholds
- Action Stage
- 12.0 ft
- Flood Stage
- 14.0 ft
- Moderate Flood
- 15.0 ft
- Major Flood
- 17.0 ft
Currently 8.01 ft below flood stage.
Recent Extremes
- Max discharge
-
7,610 cfsMay 14, 2025
- Min discharge
-
75 cfsSep 20, 2025
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
-
North F South Branch Potomac River at Cabins, WVVery High3.1 mi · 1,140 cfs
-
South F South Branch Potomac River near Moorefield, WVVery High11.9 mi · 477 cfs
-
South Branch Potomac River Near Moorefield, WVVery High14.0 mi · 433 cfs
-
North Branch Potomac River at Steyer, MDVery High22.6 mi · 367 cfs
-
South F South Branch Potomac River at Brandywine, WVHigh25.1 mi · 101 cfs